From 941f3ea52090fe1c8b88638eeaf814d82b5a16ec Mon Sep 17 00:00:00 2001
From: Niklas Fasching <niklas.fasching@gmail.com>
Date: Tue, 18 Dec 2018 18:26:17 +0100
Subject: [PATCH] Inform user if gh-pages wasm demo cannot be instantiated

---
 etc/generate-gh-pages | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/etc/generate-gh-pages b/etc/generate-gh-pages
index 34a587e..85fd91a 100755
--- a/etc/generate-gh-pages
+++ b/etc/generate-gh-pages
@@ -83,7 +83,11 @@ convert="
    const go = new Go();
    WebAssembly
      .instantiateStreaming(fetch('main.wasm'), go.importObject)
-     .then((result) => go.run(result.instance));
+     .then((result) => go.run(result.instance),
+           (error) => {
+             const button = document.getElementById('run');
+             button.textContent = 'ERROR: (' + error + ')';
+           });
 
    function initialized() {
      const button = document.getElementById('run');